misc, docs: Update minimum required golang version to 1.13

.travis.yml

@@ -24,21 +24,21 @@ install: 'make deps'
 matrix:
   fast_finish: false
   allow_failures:
-  - go: 1.13.x
+  - go: 1.14.x
   - go: tip
   - os: osx
   # include only one build for osx for a quicker build as the nr. of these runners are sparse
   include:
   - name: "basic tests"
-    go: 1.12.x
+    go: 1.13.x
     env: TEST_BLOCK=basic
   - name: "shell tests"
-    go: 1.12.x
+    go: 1.13.x
     env: TEST_BLOCK=shell
   - name: "race tests"
-    go: 1.12.x
+    go: 1.13.x
     env: TEST_BLOCK=race
-  - go: 1.13.x
+  - go: 1.14.x
   - go: tip
   - os: osx
 script: 'TEST_BLOCK="$TEST_BLOCK" make test'

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.12
+FROM golang:1.13
 
 MAINTAINER Michał Czeraszkiewicz <contact@czerasz.com>
 

docker/Dockerfile.development

@@ -1,4 +1,4 @@
-FROM golang:1.12
+FROM golang:1.13
 
 MAINTAINER Michał Czeraszkiewicz <contact@czerasz.com>
 

docs/development.md

@@ -28,7 +28,7 @@ required for running the _test_ suite.
 
 ### Build
 
-* `golang` 1.12 or higher (required, available in some distros and distributed
+* `golang` 1.13 or higher (required, available in some distros and distributed
 as a binary officially by [golang.org](https://golang.org/dl/))
 
 ### Runtime

docs/quick-start-guide.md

@@ -37,7 +37,7 @@ You'll need some dependencies, including `golang`, and some associated tools.
 
 #### Installing golang
 
-* You need golang version 1.12 or greater installed.
+* You need golang version 1.13 or greater installed.
 	* To install on rpm style systems: `sudo dnf install golang`
 	* To install on apt style systems: `sudo apt install golang`
 	* To install on macOS systems install [Homebrew](https://brew.sh)

misc/make-deps.sh

@@ -19,6 +19,14 @@ NEWAPT=`command -v apt 2>/dev/null`
 BREW=`command -v brew 2>/dev/null`
 PACMAN=`command -v pacman 2>/dev/null`
 
+# set minimum go version and installed go version
+mingoversion=13
+goversion=0
+if [ -x "$GO" ]; then
+	# capture the minor version number
+	goversion=$(go version | grep -o -P '(?<=go1\.)[0-9]*')
+fi
+
 # if DNF is available use it
 if [ -x "$DNF" ]; then
 	YUM=$DNF
@@ -97,7 +105,7 @@ if [ $travis -eq 0 ]; then
 fi
 
 # attempt to workaround old ubuntu
-if [ ! -z "$APT" ] && go version | grep -e 'go1\.[0123456789]\.' -e 'go1\.10\.'; then
+if [ ! -z "$APT" ] && [ "$goversion" -lt "$mingoversion" ]; then
 	echo "install golang from a ppa."
 	$sudo_command $APT remove -y golang
 	$sudo_command $APT install -y software-properties-common	# for add-apt-repository
@@ -107,8 +115,8 @@ if [ ! -z "$APT" ] && go version | grep -e 'go1\.[0123456789]\.' -e 'go1\.10\.';
 fi
 
 # if golang is too old, we don't want to fail with an obscure error later
-if go version | grep -e 'go1\.[0123456789]\.' -e 'go1\.10\.'; then
+if [ "$goversion" -lt "$mingoversion" ]; then
-	echo "mgmt recommends go1.11 or higher."
+	echo "mgmt recommends go1.$mingoversion or higher."
 	exit 1
 fi